Zircon U-Pb dating by LA-ICPMS technique indicates that the studied granitic pluton was emplaced during Late Paleozoic (Hercynian) with a weighted age of (262.2±1.2) Ma. Meanwhile, zircon Hf analyses conducted by LA-MC-ICPMS show that this pluton has variational εHf(262 Ma) values from 1.35 to 5.62, indicating that the primary magma of the granites mainly resulted from a depleted asthenospheric mantle. In addition, the Hf two-stage modal ages change from 1 091 Ma to 1 357 Ma, suggesting an important crustal growth event beneath the studied area.